Rio de Janeiro Cathedral

Resembling a huge, futuristic Mayan pyramid, it is impossible not to be amazed by this architectural downtown wonder. Inaugurated in 1976, while still incomplete, Catedral Metropolitana has a capacity of over 20,000 people. Conical shaped with no supporting columns and a granite rock that forms the altar, its four huge stained glass windows will rivet your attention. The underground houses the sacred arts museum.